If you wake in the morning with headache, aching jaw joints, sensitive sore teeth you could be a sleep bruxist- that's someone who grinds and clenches their teeth in the night. People who grind and clench their teeth are determined - look at Andy Murray. Many...

Bruxism is the word dentists use to describe tooth grinding or clenching.  Grinding is  side to side movement of the teeth, forcefully. Clenching is when you set your teeth together and squeeze!  The forces involved in both these actions are huge, they can be the equivalent...